CN210629219U - Motor and electric product comprising same - Google Patents

Abstract

The utility model provides a motor and contain electric product of this motor, the motor has stator, rotor and holds the stator with the shell of rotor, the stator has stator core, insulating part, wire winding connecting terminal, wiring part and seal assembly, seal assembly has: a fixing portion that fixes a position of the wiring member; a table portion supporting the fixing portion at one end of the fixing portion adjacent to the stator; and a terminal insertion portion connected to the stage, the wire connection terminal being inserted into the terminal insertion portion, a recess being formed in a part of the housing, the fixing portion protruding from the recess in an axial direction, and a part of the stage being exposed from the recess.

Description

Motor and electric product comprising same

Technical Field

The embodiment of the application relates to the field of electromechanics.

Background

In manufacturing a motor, generally, a wire connection terminal to be welded to a wire of a stator and a fixing portion to which a wiring member (for example, a printed circuit board, a wiring stage, or the like) is fixed are provided in an insulator of the stator, and then, when the stator is molded, a sealing member is attached to the wire connection terminal so as not to cover the wire connection terminal.

It should be noted that the above background description is only for the convenience of clear and complete description of the technical solutions of the present application and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the present application.

SUMMERY OF THE UTILITY MODEL

The inventors have found that, when the wire is welded to the wire connection terminal, the fixing portion may be melted by heat of the welding wire, which affects the production efficiency of the motor.

In order to solve the above problems or other similar problems, embodiments of the present invention provide a motor and an electrical product including the same.

According to an aspect of the embodiments of the present application, there is provided a motor having a stator, a rotor, and a housing accommodating the stator and the rotor, the stator having a stator core, an insulator, a wire connection terminal, a wiring member, and a sealing member, the stator core having a core back and teeth, the insulator having a first insulator covering the core back and a second insulator covering the teeth, the wire being wound on the teeth via the second insulator, the wire connection terminal being mounted on the first insulator, and an end of the wire connection terminal near the first insulator being connected to an end of the wire; the housing is made of a resin material, has a cylindrical shape with at least one side open, and covers the stator, at least a terminal portion of one end of the wire connection terminal, which is away from the first insulator, is exposed from the housing, and the wiring member is connected to the terminal portion of the wire connection terminal, wherein the sealing member includes: a fixing portion that fixes a position of the wiring member; a table portion supporting the fixing portion at one end of the fixing portion adjacent to the stator; and a terminal insertion portion connected to the stage, the wire connection terminal being inserted into the terminal insertion portion, a recess being formed in a part of the housing, the fixing portion protruding from the recess in an axial direction, and a part of the stage being exposed from the recess.

In at least one embodiment, the housing has a stator covering portion covering one axial side of the stator, the stator covering portion has a stepped portion covering the sealing member, the recessed portion is formed at the stepped portion, and the wiring member is disposed on an upper surface of the stepped portion and fixed by the fixing portion.

In at least one embodiment, the sealing member has a plurality of the terminal insertion portions, at least one of which is not connected to the land portion, and the fixing portion is located outside an arrangement direction of the plurality of the terminal insertion portions.

In at least one embodiment, the sealing member further has a connecting portion connecting two of the terminal insertion portions, and a dimension in a width direction of the connecting portion is smaller than a dimension in a width direction of the table portion.

In at least one embodiment, the fixing portion has a pillar portion extending in an axial direction from the table portion and a protruding portion extending from an end portion of the pillar portion in a direction of the terminal insertion portion.

In at least one embodiment, a position of the terrace portion projected by the projection portion is formed with a hole portion in which a part of the housing is formed.

In at least one embodiment, an upper surface of the mesa is closer to the stator than a lower surface of the terminal insertion part.

In at least one embodiment, the stage, the connecting portion, and the terminal insertion portion are formed with a groove portion at a side close to the stator, an end portion of the winding wire is disposed between the groove portion and the first insulating member, and an end of the winding wire connecting terminal close to the first insulating member is connected to the end portion of the winding wire.

In at least one embodiment, the sealing member is composed of a thermoplastic resin material.

According to another aspect of embodiments of the present application, there is provided an electric product having the motor of any one of the first to ninth aspects.

One of the beneficial effects of the embodiment of the application lies in: by disposing the fixing portion on the sealing member, when the wire is welded to the wire connecting terminal, the fixing portion is not located near the wire connecting terminal, so that the fixing portion is prevented from being melted by heat of the welded wire, and the production efficiency of the motor can be improved.

Specific embodiments of the present application are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the application may be employed. It should be understood that the embodiments of the present application are not so limited in scope. The embodiments of the present application include many variations, modifications, and equivalents within the scope of the terms of the appended claims.

Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.

It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.

Drawings

Elements and features described in one drawing or one implementation of an embodiment of the application may be combined with elements and features shown in one or more other drawings or implementations. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views, and may be used to designate corresponding parts for use in more than one embodiment.

The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 is a schematic view of a motor according to an embodiment of the present application.

Fig. 2 is a schematic view of a stator of an embodiment of the present application.

Fig. 3 is a schematic view of a motor without a wiring member according to an embodiment of the present application.

FIG. 4 is a schematic view of a seal member of an embodiment of the present application.

Fig. 5 is a plan view of the sealing member shown in fig. 4.

Fig. 6 is a schematic view of a modification of the seal member according to the embodiment of the present application.

Detailed Description

The foregoing and other features of the present application will become apparent from the following description, taken in conjunction with the accompanying drawings. In the description and drawings, particular embodiments of the application are disclosed in detail as being indicative of some of the embodiments in which the principles of the application may be employed, it being understood that the application is not limited to the described embodiments, but, on the contrary, is intended to cover all modifications, variations, and equivalents falling within the scope of the appended claims. Various embodiments of the present application will be described below with reference to the drawings. These embodiments are merely exemplary and are not intended to limit the present application.

In the embodiments of the present application, the terms "first", "second", "upper", "lower", and the like are used to distinguish different elements by name, but do not indicate a spatial arrangement, a temporal order, and the like of the elements, and the elements should not be limited by the terms. The term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprising," "including," "having," and the like, refer to the presence of stated features, elements, components, and do not preclude the presence or addition of one or more other features, elements, components, and elements.

In the embodiments of the present application, the singular forms "a", "an", and the like include the plural forms and are to be construed broadly as "a" or "an" and not limited to the meaning of "a" or "an"; furthermore, the term "comprising" should be understood to include both the singular and the plural, unless the context clearly dictates otherwise. Further, the term "according to" should be understood as "at least partially according to … …," and the term "based on" should be understood as "based at least partially on … …," unless the context clearly dictates otherwise.

In the following description of the embodiments of the present application, for the sake of convenience of description, a radial direction centering on a central axis of a rotating shaft of a motor is referred to as "radial direction", a direction around the central axis is referred to as "circumferential direction", a direction along the central axis or a direction parallel thereto is referred to as "axial direction" or "axial direction extending direction", a side away from the central axis in the radial direction is referred to as "radially outer side", a side closer to the central axis in the radial direction is referred to as "radially inner side", a direction from a stator of the motor toward a wiring member (for example, a printed circuit board, a wiring board, or the like) of the motor in the direction along the central axis or the direction parallel thereto is referred to as "upper", and a direction opposite to the "upper" is referred to as "lower".

Embodiments of the first aspect

An embodiment of a first aspect of the present application provides a motor, fig. 1 is a schematic view of the motor of the embodiment of the present application, fig. 2 is a schematic view of a stator of the embodiment of the present application, fig. 3 is a schematic view of the motor of the embodiment of the present application without a wiring member, and fig. 4 is a schematic view of a sealing member of the embodiment of the present application.

In the present embodiment, as shown in fig. 1, the motor 1 includes a stator 12 (shown in fig. 2), a rotor (not identified), and a housing 11 that houses the stator and the rotor. As shown in fig. 2, the stator 12 has a stator core (not identified) having a core back (not identified) and teeth (not identified), an insulator 122 having a first insulator 122-1 covering the core back and a second insulator (not identified) covering the teeth, a wire 123, a wire connection terminal 124 mounted on the first insulator 122-1, and one end of the wire connection terminal 124 near the core back connected to an end of the wire 123, a wiring member 125 (shown in fig. 1), and a sealing member 126.

As shown in fig. 3, the housing 11 may be a cylindrical shape having at least one side opened and covers the stator 12 (not shown), at least a distal end portion 124-1 of an end of the wire connection terminal 124 remote from the core back is exposed from the housing 11, and as shown in fig. 1, the wiring member 125 is connected to the distal end portion 124-1 of the wire connection terminal 124.

In the embodiment of the present application, the housing 11 may be made of a resin material, or may be made of other materials (for example, plastic, etc.), and the embodiment of the present application is not limited thereto. The housing 11 may be formed by an injection molding process, or may be formed by other processes, which is not limited in the embodiments of the present application.

As shown in fig. 4, in at least one embodiment, the sealing member 126 includes a fixing portion 126-1, a land portion 126-2, a terminal insertion portion 126-3, wherein the fixing portion 126-1 fixes the position of the wiring member 125; the table portion 126-2 supports the fixing portion 126-1 at an end of the fixing portion 126-1 adjacent to the stator; the terminal insertion part 126-3 is connected to the land part 126-2. As shown in fig. 2, the wire connection terminal 124 is inserted into the terminal insertion portion 126-3. By disposing the fixing portion 126-1 on the sealing member 126, when the wire is soldered to the wire connection terminal, since the fixing portion is not in the vicinity of the wire connection terminal, it is possible to prevent the fixing portion 126-1 from being melted by the heat of the soldered wire.

As shown in FIG. 3, in at least one embodiment, a portion of the housing 11 is formed with a recess 111, a fixed portion 126-1 protrudes axially from the recess 111, and a portion of the land portion 126-2 is exposed from the recess 111. Thus, the fixing portion 126-1 can be easily elastically deformed, facilitating the mounting of wiring members (e.g., printed circuit boards, wiring boards, etc.).

In the embodiment of the present invention, as shown in fig. 2, the insulator 122 may be a mounting structure that is separate from the stator core, may be a structure that integrally covers the stator core by insert molding the stator core, or may be another structure or molding method, and the structure or molding method of the insulator 122 is not limited in the embodiment of the present invention.

In the present embodiment, as shown in fig. 1, the stator 12 may be covered by the housing 11 by insert molding, or may be partially exposed from the housing 11, for example, in the case where the motor is an inner rotor motor, at least the radially inner end portions of the teeth of the stator core are exposed from the housing 11. However, the embodiment of the present application is not limited thereto, and the motor may be an outer rotor motor. Further, the motor may be a molded motor by injection molding.

In the embodiment of the present invention, as shown in fig. 1, the wiring member 125 may be a member printed with a circuit pattern such as a printed circuit board, may be a wiring board member directly connected with a terminal lead, may be a member wired with a terminal lead by a resin plate, or may be a member for other wiring, and the present invention is not limited thereto.

In one or some embodiments, as shown in fig. 3, the housing 11 includes a stator covering portion 112 covering one side in the axial direction S of the stator 12 (not identified), the stator covering portion 112 includes a step portion 112-1, the step portion 112-1 covers the seal member 126 (not identified), and the recess 111 is formed in the step portion 112-1. As shown in fig. 1, the wiring member 125 is disposed on the upper surface of the step portion 112-1 and fixed by the fixing portion 126-1. Thus, the height position of wiring member 125 in axial direction S is defined by step portion 112-1.

Thus, for example, as shown in fig. 2, since the sealing member 126 is close to the radially outer edge of the stator 12, the upper end portion of the winding wire 123 is positioned on the lower surface of the sealing member 126, and the stepped portion 112-1 is formed, the amount of resin used in the stator covering portion 112 positioned at the upper end portion of the winding wire 123 can be reduced, and the manufacturing cost can be reduced.

In one or some embodiments, as shown in fig. 4, the sealing member 126 includes a plurality of terminal insertion portions 126-3, three of which are shown in fig. 4, wherein at least one terminal insertion portion 126-3 is not connected to the stage 126-2, such as the terminal insertion portion 126-3 in the middle of fig. 4, and the fixing portions 126-1 are located at the outer sides of the arrangement direction a-a of the plurality of terminal insertion portions 126-3, i.e., at both ends of the sealing member 126, whereby, since the fixing portions 126-1 are not located between the terminal insertion portions 126-3, when the wiring member 125 is solder-fixed to the winding connection terminal 124 after the sealing member 126 is disposed on the stator, the soldering work is not affected.

The sealing member 126 shown in fig. 4 includes 3 terminal insertion portions 126-3 and 2 fixing portions 126-1, but the embodiment of the present application is not limited thereto, and the sealing member 126 may further include 1, 2, or more than 3 terminal insertion portions 126-3, and the sealing member 126 may also include 1 or more than 2 fixing portions 126-1.

Fig. 5 is a plan view of the sealing member shown in fig. 4. In one or some embodiments, as shown in fig. 4 and 5, the sealing member 126 may further include a connecting portion 126-4 connecting the two terminal insertion portions 126-3, and the size of the connecting portion 126-4 is smaller than that of the land portion 126-2 in the width direction B-B.

Thus, the terminal insertion parts 126-3 are connected by the connection part 126-4, and it is not necessary to prepare a plurality of separate terminal insertion parts 126-3, reducing the manufacturing complexity. Further, since the connection portion 126-4 is thin in size and is easily elastically deformed, if there is a deviation in the position where the wire connection terminal 124 is mounted on the first insulating member 122-1, the wire connection terminal 124 can be inserted into the terminal insertion portion 126-3 by bending the connection portion 126-4.

In one or some embodiments, as shown in fig. 4, the fixing portion 126-1 includes a post portion 126-1a extending axially from the land portion 126-2 and a protrusion portion 126-1b extending from an end of the post portion 126-1a in a direction of the terminal insertion portion 126-3. The upper surface of the projection 126-1b shown in fig. 4 is an inclined surface, and the projection 126-1b and the post 126-1a are formed in a hook shape, thereby facilitating fixing of the wiring member below the projection 126-1b without displacement in the axial direction.

In the present embodiment, the pillar portion 126-1a has an elastic force returning from a direction inclined with respect to the table portion 126-2 to a direction perpendicular to the table portion 126-2, and therefore, the wiring member 125 can be easily fixed.

In the present embodiment, the upper surface of the protruding portion 126-1b may be parallel to the surface of the table portion 126-2, and the protruding portion 126-1b and the pillar portion 126-1a may be formed in other shapes as long as they can fix the wiring member, which is not limited in the present embodiment.

In one or some embodiments, as shown in FIG. 4, the terrace portion 126-2 is formed with a hole portion 126-2a at a position projected by the projection portion 126-1 b. Since the protruding portion 126-1b protrudes with respect to the pillar portion 126-1a, a hole portion 126-2a is formed in the table portion 126-2, and when the fixing portion 126-1 is injection molded using an upper and lower type mold and is released from the mold, the lower mold can be drawn out in a downward direction from the hole portion 126-2a, thereby facilitating molding of the protruding portion 126-1b, and also avoiding damage to the protruding portion 126-1b using a slide mold, thereby enabling improvement in the yield of the sealing member 126.

In the embodiment of the present application, when the housing 11 is molded after the sealing member 126 is inserted into the wire connection terminal 124, the material forming the housing 11 may enter the hole portion 126-2a, and thus, a portion of the housing 11 may be formed in the hole portion 126-2a, thereby improving the stability of the housing 11.

Fig. 6 is a schematic view of a modification of the seal member. In one or some embodiments, as shown in FIG. 6, the upper surface of the land portion 126-2 is closer to the stator (not identified) than the lower surface of the terminal insertion portion 126-3. Thus, by decreasing the height of the table portion 126-2 and increasing the length of the pillar portion 126-1a, the pillar portion 126-1a is more easily bent and the wiring member 125 is easily fixed. Further, the sealing member 126 does not form a hole portion on the terrace portion 126-2, so that the strength of the terrace portion 126-2 can be increased.

In one or some embodiments, as shown in fig. 2, the stage portion 126-2, the connecting portion 126-4 and the terminal insertion portion 126-3 are formed with a groove portion 20 at a side close to the stator 12, an end portion of the winding wire 123 is disposed between the groove portion 20 and the first insulating member 122-1, and an end of the winding wire connecting terminal 124 close to the first insulating member 122-1 is connected to the end portion of the winding wire 123. Thus, the end of the winding wire 123 is received by the groove portion 20 and the first insulating member 122-1, and the winding wire 123 is prevented from being broken by an external force.

In at least one embodiment, as shown in fig. 2, the terminal insertion portion 126-3 located at the middle position and the adjacent two connection portions 126-4 are also formed with a groove portion 20 at a side close to the stator 12, and the end portion of the winding wire 123 can also be disposed between the groove portion 20 and the corresponding first insulating member 122-1, thereby preventing the winding wire 123 from being broken by an external force.

In one or some embodiments, the sealing member 126 may be constructed of a thermoplastic resin material. However, the embodiment of the present application is not limited thereto, and the sealing member 126 may be made of other materials. In addition, the sealing member may be formed by injection molding, or may be formed by other methods, which is not limited in the embodiments of the present application. After the wiring member 125 is fixed by the fixing portion 126-1 of the sealing member 126, the end (e.g., the protruding portion 126-1b) of the fixing portion 126-1 may be heated and melted, thereby further fixing the wiring member 125 by thermal welding with the wiring member 125.

According to the embodiment of the first aspect of the present application, since the fixing portion is not located near the wire connection terminal when the wire is welded to the wire connection terminal by disposing the fixing portion on the sealing member, the fixing portion can be prevented from being melted by the heat of the welding wire, and the production efficiency of the motor can be improved.

Embodiments of the second aspect

Embodiments of the second aspect of the present application provide an electrical product having the motor described in embodiments of the first aspect. Since the structure of the motor has been described in detail in the embodiment of the first aspect, the contents thereof are incorporated herein, and the description thereof is omitted here.

In the embodiment of the second aspect of the present application, the type of the electrical product is not limited, and the electrical product may be a brake system, an air conditioner, a water dispenser, a washing machine, a sweeper, a compressor, a blower, a blender, or other electrical equipment.

According to the embodiment of the second aspect of the present application, in the motor of the electric product, since the fixing portion is not located near the wire connection terminal when the wire is welded to the wire connection terminal by disposing the fixing portion on the sealing member, the fixing portion is prevented from being melted by heat of the welded wire, and the production efficiency of the motor can be improved, thereby improving the production efficiency of the electric product.

The present application has been described in conjunction with specific embodiments, but it should be understood by those skilled in the art that these descriptions are intended to be illustrative, and not limiting. Various modifications and adaptations of the present application may occur to those skilled in the art based on the spirit and principles of the application and are within the scope of the application.

Claims (10)

1. A motor having a stator, a rotor, and a housing accommodating the stator and the rotor, the stator having a stator core, an insulator, a winding connection terminal, a wiring member, and a sealing member, the stator core having a core back and teeth, the insulator having a first insulator covering the core back and a second insulator covering the teeth, the winding being wound on the teeth via the second insulator, the winding connection terminal being mounted on the first insulator, and an end of the winding connection terminal near the first insulator being connected to an end of the winding; wherein the housing is made of a resin material, has a cylindrical shape with at least one side open, and covers the stator, at least a terminal portion of one end of the wire connection terminal, which is away from the first insulator, is exposed from the housing, and the wiring member is connected to the terminal portion of the wire connection terminal,

the seal member has:

a fixing portion that fixes a position of the wiring member;

a table portion supporting the fixing portion at one end of the fixing portion adjacent to the stator; and

a terminal insertion portion connected to the stage portion, into which the wire connection terminal is inserted,

a recess is formed in a part of the housing, the fixing portion protrudes from the recess in the axial direction, and a part of the table portion is exposed from the recess.

2. The motor of claim 1,

the housing has a stator covering portion covering one axial side of the stator,

the stator covering part has a stepped part covering the sealing member,

the recessed portion is formed at the stepped portion,

the wiring member is disposed on the upper surface of the step portion and fixed by the fixing portion.

3. The motor of claim 1,

the sealing member has a plurality of the terminal insertion portions, at least one of which is not connected to the land portion, and the fixing portion is located outside an arrangement direction of the plurality of the terminal insertion portions.

4. The motor of claim 3,

the sealing member further has a connecting portion connecting the two terminal insertion portions, and a dimension in a width direction of the connecting portion is smaller than a dimension in a width direction of the table portion.

5. The motor of claim 1,

the fixing portion includes a post portion extending in an axial direction from the table portion and a protruding portion extending from an end portion of the post portion in a direction of the terminal insertion portion.

6. The motor of claim 5,

a hole portion is formed at a position of the table portion projected by the projection portion,

a portion of the housing is formed in the hole portion.

7. The motor of claim 5,

an upper surface of the mesa is closer to the stator than a lower surface of the terminal insertion part.

8. The motor of claim 4,

the table portion, the connecting portion, and the terminal insertion portion are formed with a groove portion on a side close to the stator, an end portion of the winding wire is disposed between the groove portion and the first insulating member,

one end of the winding wire connecting terminal close to the first insulating part is connected with the end of the winding wire.

9. The motor according to any one of claims 1 to 8,

the sealing member is made of a thermoplastic resin material.

10. An electrical product, characterized in that the electrical product is provided with a motor according to any one of claims 1 to 9.

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